Radial artery compression band having fine adjustment mechanism

Abstract

A radial artery compression band is disclosed for circumferential placement around the wrist of a patient to apply hemostasis pressure to a wound, which includes a first arcuate band portion including a radially outwardly extending support frame, a second elongated band portion including a plurality of longitudinally spaced apart radially outwardly extending ramped engagement teeth, a third elongated band portion extending between the first and second band portions and including a radially inwardly facing compression structure for applying hemostasis pressure to the wound, and a band adjustment mechanism mounted within the support frame of the first arcuate band portion and including an axially rotatable shaft having a worm gear section with a continuous helical thread for selectively intermeshing with the ramped engagement teeth on the second elongated band portion to adjust band tension through axial rotation of the shaft.

Description

BACKGROUND OF THE INVENTION1. Field of the Invention[0001]The subject invention is directed to a compressive hemostatic device, and more particularly, to a radial artery compression band for precisely applying hemostasis pressure to a vascular intervention site following a radial artery procedure.2. Description of Related Art[0002]Vascular intervention procedures have long been performed by accessing the femoral artery. However, access of the radial artery has become accepted as an alternative to femoral artery intervention for certain intervention procedures. For example, radial artery access for cardiac catheterization has become an accepted intervention procedure. Indeed, it has been found that intervention of the radial artery reduces costs and potential complications when compared to femoral artery invention.[0003]Following the intervention, hemostasis of the access site is achieved by applying a hemostasis compression band to the site or by applying manual pressure to the site...

AI Technical Summary

Benefits of technology

[0008]Preferably, the band adjustment mechanism includes an over-centered latch member that is pivotably mounted to the support frame about a transverse pivot axis, and the support frame includes a pair of laterally spaced apart upstanding walls that pivotably support the over-centered latch member of the band adjustment mechanism therebetween. The axially rotatable shaft is rotatably connected to the over-centered latch member by a threaded fastener, and it includes a knurled handle section to facilitate manual rotation of the worm gear section of the shaft relative to the engagement teeth of the second band portion.

Problems solved by technology

However, certain deficiencies exist with respect to conventional devices used to provide hemostasis of a radial access site.

For instance, conventional hemostasis devices (including compression bands), while being able to provide the necessary pressure to achieve hemostasis, are known to collapse the radial artery when applying pressure.

Occlusion of the radial artery can restrict adequate blood supply to the hand, causing complications such as pain and numbness in the hand.

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